掺铝富锂材料Li1.2Mn0.543Co0.078Ni0.155Al0.030O2电极的电化学性能; Effect of Al-Doping in Li-Rich Material Li1.2Mn0.543Co0.078Ni0.155Al0.030O2 for Lithium-Ion Batteries | |
金晓茜 ; 李益孝 ; 杨勇 ; 王周成 ; JIN Xiao-xi ; LI Yi-xiao ; YANG Yong ; WANG Zhou-cheng | |
刊名 | http://electrochem.xmu.edu.cn/CN/abstract/abstract10053.shtml
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2014-04-28 | |
关键词 | 锂离子电池 富锂材料 Al掺杂 循环性能 lithium-ion battery lithium enriched material Al-doping cycling performance |
英文摘要 | 本文合成了掺铝富锂材料Li1.2Mn0.543Co0.078Ni0.155Al0.030O2,并使用扫描电镜(SEM)、粉末X射线衍射(XRD)、电感耦合等离子体原子发射光谱(ICP-AES)和拉曼散射光谱(Raman)等观察表征富锂和掺铝富锂材料. 结果表明,共沉淀法合成掺铝富锂材料,具有R-3m空间群结构,Al元素进入晶格,未单独成相. 电化学性能和非现场XRD测试结果表明,4%(by mole)掺铝富锂电极100周期循环容量保持率83.7%,Al元素掺杂有利于容量的释放,增强了电极富锂材料的结构稳定性,提高了循环性能.; The Al-doped 0.5Li2MnO3·0.5Li(Mn0.4Co0.2Ni0.4)O2 compounds were successfully synthesized as cathode materials for lithium-ion batteries. The pristine and Al-doped materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), inductively coupled plasma-atomic emission spectrometry (ICP-AES) and laser Raman spectroscopy. The results indicated that all the prepared materials were indexed as a hexagonal structure with R-3m space group, and Al element had been introduced into lattice. When cycled at 180 mA·g-1 (1 C-rate), the capacity retention of 4% (by mole) Al-doped 0.5Li2MnO3·0.5Li(Mn0.4Co0.2Ni0.4)O2 electrode was as high as 83.7% after 100 cycles. The Al-doped materials could enhance the structural stability of electrodes, which contributes to high stabilized performance of cathode material for lithium ion batteries.; 国家重点基础研究发展计划项目(No. 2007CB935603)资助; 作者联系地址:厦门大学化学化工学院,福建 厦门 361005; Author's Address: College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China; 通讯作者E-mail:zcwang@xmu.edu.cn |
语种 | 中文 |
出版者 | 厦门大学《电化学》编辑部 |
内容类型 | 期刊论文 |
源URL | [http://dx.doi.org/10.13208/j.electrochem.130516] ![]() |
专题 | 2014年第20卷 |
推荐引用方式 GB/T 7714 | 金晓茜,李益孝,杨勇,等. 掺铝富锂材料Li1.2Mn0.543Co0.078Ni0.155Al0.030O2电极的电化学性能, Effect of Al-Doping in Li-Rich Material Li1.2Mn0.543Co0.078Ni0.155Al0.030O2 for Lithium-Ion Batteries[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract10053.shtml,2014. |
APA | 金晓茜.,李益孝.,杨勇.,王周成.,JIN Xiao-xi.,...&WANG Zhou-cheng.(2014).掺铝富锂材料Li1.2Mn0.543Co0.078Ni0.155Al0.030O2电极的电化学性能.http://electrochem.xmu.edu.cn/CN/abstract/abstract10053.shtml. |
MLA | 金晓茜,et al."掺铝富锂材料Li1.2Mn0.543Co0.078Ni0.155Al0.030O2电极的电化学性能".http://electrochem.xmu.edu.cn/CN/abstract/abstract10053.shtml (2014). |
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